Finding the Fourth Proportional to 72.82, 109.22 and 34.29

Step by Step Solution

1. Step 1: Write the proportion equation
   72.82 : 109.22 = 34.29 : x
2. Step 2: Convert to fraction form
   72.82/109.22 = 34.29/x
3. Step 3: Cross multiply
   72.82x = 109.22 × 34.29
4. Step 4: Simplify right side
   72.82x = 3,744.98
5. Step 5: Solve for x
   x = 3,744.98/72.82
6. Step 6: Final answer
   x = 51.43